package com.hernie.piggymall.ware.config;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;

/**
 * @Author HuangJp
 * @Date 2022/5/19
 * @Description
 */
@Configuration
public class MyRabbitConfig {
    /**
     * 将rabbitmq消息中的对象转换为json格式（默认是java序列化机制）
     */
    @Bean
    public MessageConverter messageConverter() {
        return new Jackson2JsonMessageConverter();
    }

    @Bean
    public Exchange stockEventExchange() {
        return new TopicExchange("stock-event-exchange", true, false);
    }

    @Bean
    public Queue stockReleaseStockQueue() {
        return new Queue("stock.release.stock.queue", true, false, false);
    }

    @Bean
    public Queue stockDelayQueue() {
        HashMap<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", "stock-event-exchange"); // 死信路由：设置消息死信后（过期后），交给指定的exchange
        arguments.put("x-dead-letter-routing-key", "stock.release"); // 设置消息死信后（过期后）的路由键
        arguments.put("x-message-ttl", 120000); // 消息过期时间 2分钟
        return new Queue("stock.delay.queue", true, false, false, arguments);
    }

    @Bean
    public Binding stockReleaseBinding() {
        return new Binding("stock.release.stock.queue", Binding.DestinationType.QUEUE, "stock-event-exchange", "stock.release.#", null);
    }

    @Bean
    public Binding stockLockedBinding() {
        return new Binding("stock.delay.queue", Binding.DestinationType.QUEUE, "stock-event-exchange", "stock.locked", null);
    }

}
